The future of humanity is in your hands!

Zorg, the space alien from the Crab Nebula has formed
a sinister alliance with PoDBOT with a singular purpose
in mind - the total destruction and annihilation of
the human kind. A huge fleet of attack warships
has been launched from Zorg's home planet and
is to be joined by PoDBOT's attack bots.
You are human race's last hope.

Fusion Cannon (FuC), the pinnacle of human military technology,
is the only weapon capable of destroying the Zorg armada
and the PoDBOT attack bots. Unfortunately, nuclear
non-proliferation treaties designed to keep Earth safe from
self-annihilation has severely limited the number
of available fusion cannon balls. You only have 150
cannon balls and you must use them effectively and
save your balls.

The Zorg and PoDBOT fleets have gathered to swarm our
planet. If 30 of their ships land on Earth, we will
not be able to stop their invasion and humanity is
doomed to extinction. You must prevent their ships from
landing on Earth at all cost.

Intergalactic rumors suggest that a higher power
is responsible for the invasion. If possible, you
must investigate and determine the real culprit
behind the invasion.

We are currently developing
a Massive Ordinance Fusion Orb (MOFO), a weapon with
enormous amount of destructive power. We will
provide you with access to this weapon when ready
for the defense of planet Earth. Good luck!